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Related papers: Transport of spin-anisotropy without spin currents

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Phenomenological approach is developed in the theory of spin-valve type ferromagnetic junctions to describe exchange switching by current flowing perpendicular to interfaces. Forward and backward current switching effects are described and…

Materials Science · Physics 2007-05-23 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

The angular dependence of the thermal transport in insulating or conducting ferromagnets is derived on the basis of the Onsager reciprocity relations applied to a magnetic system. It is shown that the angular dependence of the temperature…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 J. -E. Wegrowe , H. -J. Drouhin , D. Lacour

We consider the influence of the electron-electron interaction on the nonlinearity of the current-voltage characteristic of the tunnel junction at low bias (diffusive anomaly) in the presence of the classical magnetic field. We present the…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 E. V. Sukhorukov , A. V. Khaetskii

We investigate transport properties of junctions between two spin-split superconductors linked by a spin-polarized tunneling barrier. The spin-splitting fields in the superconductors (S) are induced by adjacent ferromagnetic insulating (FI)…

Antiferromagnets are promising candidates as active components in spintronic applications. They share features with ferrimagnets in that opposing spin orientations exist in two or more sublattices. Spin transfer torque and spin pumping are…

Mesoscale and Nanoscale Physics · Physics 2024-09-24 Hans Gløckner Giil , Arne Brataas

We discuss spin-wave transport in anisotropic ferromagnets with an emphasis on the zeroes of the band edges as a function of a magnetic field. An associated divergence of the magnon spin should be observable by enhanced magnon…

Mesoscale and Nanoscale Physics · Physics 2023-04-24 G. E. W. Bauer , P. Tang , M. Elyasi , Y. M. Blanter , B. J. van Wees

We theoretically study the quench dynamics of induced anisotropy of a large-spin magnetic molecule coupled to spin-polarized ferromagnetic leads. The real-time evolution is calculated by means of the time-dependent density-matrix numerical…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Kacper Wrześniewski , Ireneusz Weymann

The standard spin-transfer torque (STT)---where spin-polarized current drives dynamics of magnetization viewed as a classical vector---requires noncollinearity between electron spins carried by the current and magnetization of a…

Strongly Correlated Electrons · Physics 2019-03-22 Priyanka Mondal , Marko D. Petrovic , Petr Plechac , Branislav K. Nikolic

We discuss a spin-transfer torque device, where the role of the soft ferromagnetic layer is played by a magnetic particle or a magnetic molecule, in weak tunnel contact with two spin polarized leads. We investigate if the magnetization of…

Mesoscale and Nanoscale Physics · Physics 2015-10-19 P. Gartland , D. Davidovic

We analyze the electronic transport through a model spin-1 molecule as a function of temperature, magnetic field and bias voltage. We consider the effect of magnetic anisotropy, which can be generated experimentally by stretching the…

Strongly Correlated Electrons · Physics 2011-06-24 P. S. Cornaglia , P. Roura Bas , A. A. Aligia , C. A. Balseiro

Non-equilibrium transport through a quantum dot with one spin-split single-particle level is studied in the cotunneling regime at low temperatures. The Coulomb diamond can be subdivided into parts differing in at least one of two respects:…

Mesoscale and Nanoscale Physics · Physics 2009-12-07 Daniel Becker , Daniela Pfannkuche

In our JunPy package, we have combined the first-principles calculated self-consistent Hamiltonian with divide-and-conquer technique to successfully determine the magnetic anisotropy (MA) in an Fe/MgO/Fe magnetic tunnel junction (MTJ). We…

Materials Science · Physics 2023-08-21 Bao-Huei Huang , Yu-Hsiang Fu , Chao-Cheng Kaun , Yu-Hui Tang

We observe spin-valve-like effects in nano-scaled thermally evaporated Co/AlOx/Au tunnel junctions. The tunneling magnetoresistance is anisotropic and depends on the relative orientation of the magnetization direction of the Co electrode…

Popular Physics · Physics 2015-05-13 R. S. Liu , L. Michalak , C. M. Canali , L. Samuelson , H. Pettersson

We develop a theory for spin transport and magnetization dynamics in a quantum-dot spin valve, i.e., two magnetic reservoirs coupled to a quantum dot. Our theory is able to take into account effects of strong correlations. We demonstrate…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 N. M. Gergs , S. A. Bender , R. A. Duine , D. Schuricht

Thermal entanglement of a two-qubit Heisenberg chain in presence of the Dzyaloshinski-Moriya (DM) anisotropic antisymmetric interaction and entanglement teleportation when using two independent Heisenberg chains as quantum channel are…

Quantum Physics · Physics 2009-11-13 Guo-Feng Zhang

We study theoretically some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems. Based on a scattering wave function approach, we show rigorously that in the equilibrium state…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Yongjin Jiang , Liangbin Hu

We analyze spin-dependent transport through a spin-diode in the presence of spin-flip and under influence of temperature bias. The current polarization and the spin accumulation are investigated in detail by means of reduced density matrix.…

Mesoscale and Nanoscale Physics · Physics 2012-04-10 M. Bagheri Tagani , H. Rahimpour Soleimani

This article reviews spin-dependent transport of carriers in homogenous three-dimensional and two-dimensional semiconductors. We begin with a discussion of optical orientation of electron spins, which allows both the creation and detection…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 R. Winkler

The charge-to-spin conversion provides an efficient way to manipulate the magnetization by electrical means. In this work, we report on a study on the anisotropic nonrelativistic charge-to-spin conversion response to the current direction…

Other Condensed Matter · Physics 2025-12-10 Mingbo Dou , Xianjie Wang , L. L. Tao

Spin transport typically relies on direct manipulation of the spin degree of freedom via magnetic fields, spin-orbit coupling, or engineered spin-dependent potentials. We show theoretically that directional spin currents can arise in a…

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